Keeping It Close to Home

  • Baylor Radtke bags up anemometers for the climbers to carry up the tower. The student crew placed three anemometers at different heights, along with two wind direction indicators. The data is recorded and analyzed to estimate average wind speed. Researcher Mike Mageau is getting detailed information on several towers up and down the North Shore of Lake Superior. (Photo by Stephanie Hemphill)

People concerned about energy are
getting more and more interested
in producing their own. Stephanie
Hemphill reports on an effort to
harvest the wind, and other natural
resources, to power a community:

Transcript

People concerned about energy are
getting more and more interested
in producing their own. Stephanie
Hemphill reports on an effort to
harvest the wind, and other natural
resources, to power a community:

(sound of climbing)

Three students are getting ready to climb a TV tower on Moose
Mountain on the north shore of Lake Superior. They’ll put up three
anemometers – little cups that spin in the wind and measure how fast
it’s blowing.

As they deploy their climbing equipment, their professor, Mike
Mageau, keeps asking if they have enough safety gear. He seems a
little anxious.

“Two of them are mountain climbers. So they seem to think this will
be no big deal.” (laughs)

Mageau teaches at the University of Minnesota Duluth. He’s been
measuring the wind on the high ridge that runs along the Lake
Superior shoreline.

“If you look at the statewide wind maps, they don’t give us credit for
having any wind along the North Shore of Lake Superior. But Grand
Portage was interested in wind, and they did some monitoring and we
helped them. This was years ago.”

That’s the Grand Portage Band of Ojibway Indians. Mageau got a
grant to install monitoring equipment up and down Lake Superior
shoreline.

“And we found 15 to 20 mile-an-hour average wind speeds at the
sites.”

That’s about the same as the best wind sites in Iowa, where huge
wind farms spread across the landscape.

Mageau doesn’t advocate a big wind farm here. Instead, the idea is
to put up one windmill for each community along the shore. One big
turbine could supply roughly half the electricity each town uses.

He knows some people are nervous about this. The North Shore of
Lake Superior is beautiful, and no one wants to ruin the scenery. It’s
also an important route for migrating birds. There’s concern that
birds could fly into the spinning blades. A separate group of
researchers is studying the migration routes.

“Are they flying close to the lake, along the peaks, just inland or
lakeside of the peak, where are they flying? So hopefully when we
pick a wind site we’ll stay away from the birds.”

If a wind tower is ever built here, the power would go to the town of
Grand Marais Minnesota, 20 miles north. And it would fit in with other
projects local folks are working on, to become more energy self-
sufficient.

Buck Benson owns the local hardware store. He says he and his
friends, George and Lonnie, hatched the idea while they were fishing.

“We were grumbling about all this stuff, ‘what can we really do.’ And,
when we came back home, George kept prodding us, ‘you know what
we talked about,’ so we formed a little group. And I think we’ve done
good work since we started this organization.”

The group has been researching various ideas about how to produce
energy locally. One team is pursuing that windmill idea we heard
about. Another project is a little closer to being built: they want to
burn the wood chips from a local sawmill in a central heating system
for the town.

(sound of buzzing)

The chips would come from Hedstrom Lumber mill. Howard
Hedstrom says the mill sells bark chipped off the trees. But he has to
haul it miles away to sell it.

“By the time you pay the freight, there’s not much left. And if it could
be used locally, why not use it locally and save all that transportation
cost.”

The city of Grand Marais has applied for a federal grant to pay for half
the cost of the boiler.

Communities across the country are looking to use what they’ve got
around them, instead of importing energy from a big coal or nuclear
plant miles away.

It helps keep money close to home, and it could be better for the
earth.

For The Environment Report, I’m Stephanie Hemphill.

Related Links

A New Look at Old Dams

  • There are approximately 80,000 dams in the United States - among them is the Hoover Dam in Nevada. (Photo by Shawn Allee)

There’s been a lot of talk about climate change in Washington D.C. lately. Whether it’s a new law, or tighter regulations, the cost of burning dirty fossil fuels for energy is likely to go up. As Mark Brush reports that has some people taking a second look at old dams:

Transcript

There’s been a lot of talk about climate change in Washington D.C. lately. Whether it’s a new law, or tighter regulations, the cost of burning dirty fossil fuels for energy is likely to go up. As Mark Brush reports that has some people taking a second look at old dams:

There are about 80,000 dams around the country. A lot of them were built a long time ago. And, as they get old, communities have to decide whether to spruce them up – or tear them down.

But some experts are saying these smaller, old dams might be worth keeping.

Ron Corso is with the United States Society on Dams.

“There’s enough sites out there to dramatically increase the amount of hydropower that exists today, and the FERC has more applications in front of it than it has in twenty years.”

The FERC is the Federal Energy Regulatory Commission. It’s the government agency that oversees dams.

Corso says communities are weighing the economic costs before repairing or retro-fitting an old dam.

And if the dam is small – say under 20 feet tall – Corso says it often is not worth the cost.

For The Environment Report, I’m Mark Brush.

Related Links

Seeing Snakes as Worth Saving

  • Biologist Tobi Kiesewalter takes out a black rat snake at the visitor's center at Murphy's Point Provincial Park in Ontario. (Photo by Karen Kelly)

As kids, many of us come to see
snakes as frightening, evil creatures.
In some places, that ingrained fear
has taken a toll on the snake population.
Karen Kelly met up with some folks
who are trying to improve one snake’s
image – before it disappears:

Transcript

As kids, many of us come to see
snakes as frightening, evil creatures.
In some places, that ingrained fear
has taken a toll on the snake population.
Karen Kelly met up with some folks
who are trying to improve one snake’s
image – before it disappears:

(sound of truck, bumping on a road)

George Sheffield drives his truck along the dirt path that leads to his family’s
vacation cottage. He keeps an eye out for long, black snakes.

“It might be a good day to see a snake. It was cold last night so they’ll be
looking for sun today to heat back up.”

Sheffield’s land is one of the few places where black rat snakes still thrive in
Ontario. They’re a threatened species here, partly because people have moved
into their habitat.

But also, because they’re often six feet long, so people get scared and kill them.
The black rat snake is the longest snake in Canada. It’s not poisonous, but it’s a
constrictor that eats small animals.

(sound of walking towards cottage)

Once we’re at Sheffield ‘s camp, he checks out one of the snakes’ favorite spots
– the roof of his cottage.

“The one time, there 3 or 4 out on the roof, with portions of others, with their
heads or tails sticking out of soffits. So they do inhabit the cottage. I wish they
didn’t, but until I fix it, I can’t blame them.”

Sheffield is one of a growing number of landowners who are trying to protect
the black rat snake. They’re putting up nesting boxes in fields and wooded
areas to give the snakes a warm and safe place to spend the winter.

But the biggest challenge is just convincing people not to kill them.

Kiesewalter: “Do you want to hold the snake?”

Children: “He’s pretty heavy.” “He feels kind of like rubber.”

Tobi Kiesewalter is a biologist at Murphy’s Point Provincial Park in
southeastern Ontario. It’s used by as many as 500 black rat snakes – as well as
a lot of campers, swimmers, and boaters.

It’s a perfect chance to teach people about the snake. So every day, Kiesewalter
takes a rat snake out of a cage in the visitor’s centre and tries to persuade people
to leave them alone.

“I hear about it all the time, people coming and telling us about how their dad
had killed snakes before. Kids will tell you anything. And, as with many
reptiles, the loss of even one mature adult can cause a dip in population because
we know they’re only reproducing every two years.”

There’s a lot of effort to help this snake. Culverts are dug under highways to
give them a safe route back and forth. There are road signs that say, “Please
brake for snakes.” There’s even an adopt-a-snake program.

But the fact is, the black rat snake isn’t in danger in other parts of North
America. So why save it here?

For George Sheffield, the answer is simple.

“I grew up with them here, I think it would be a shame if man’s activities
caused the end of another species in another area. We’ve already done way too
much to degrade the environment and the number of species, so anything
anybody can do is good.”

For The Environment Report, I’m Karen Kelly.

Related Links

Dioxin Deal One Step Closer

  • A sign on the Tittabawassee River, downriver from Dow Chemical Plant, stating to avoid contact with the soil and not eat the fish due to dioxin contamination (Photo by Vincent Duffy)

The federal government and a major
chemical company have reached an
initial agreement about cleaning
up one of the nation’s largest dioxin
pollution sites. But, Shawn Allee reports, the public will
have to wait a bit to examine the
fine print:

Transcript

The federal government and a major
chemical company have reached an
initial agreement about cleaning
up one of the nation’s largest dioxin
pollution sites. But, Shawn Allee reports, the public will
have to wait a bit to examine the
fine print:

Central Michigan has a dubious distinction: The Environmental Protection Agency
claims that a flood plain there has some of the highest dioxin levels ever found in soil.

That dioxin came from a Dow chemical plant decades ago. The EPA and Dow just
concluded negotiations over a clean-up deal.

Wendy Carney is with the EPA’s regional Superfund cleanup office. Carney says the
deal is not done, though.

“This agreement doesn’t actually contain any cleanup options. It also doesn’t
address any cleanup levels for the site. That would be a part of things we would talk
about with the public in a public forum to get their feedback on those issues.”

Carney says the EPA could unveil its agreement with Dow in two weeks.

The EPA suspects dioxins cause cancer and other health problems.

For The Environment Report, I’m Shawn Allee.

Related Links